RESEARCH PAPERS: Offshore Mechanics

The Use of Robotics and Expert Systems for the Manufacture of Structural Beams

[+] Author and Article Information
E. L. Gursoz, F. B. Prinz

Carnegie Mellon University, Pittsburgh, Pa. 15213

J. Offshore Mech. Arct. Eng 110(4), 330-336 (Nov 01, 1988) (7 pages) doi:10.1115/1.3257070 History: Received January 01, 1986; Revised May 18, 1988; Online October 30, 2009


This paper describes an expert system for a class of automated cutting operations which are of practical use in the offshore manufacturing industry. These operations include plasma cutting, oxy-fuel cutting, laser cutting and water-jet cutting. The common features in these processes, which define this class of cutting operations, are: 1) the work material is cut by the sweeping action of a line segment; 2) the cutting effect terminates at an imprecise point along the cutting segment; 3) the cutting task at hand can be fully described by the surface-boundary representation of the workpiece and the surface to be cut. The fundamental problem in such a planning task is that neither a strictly geometrical analysis, nor a purely heuristic approach is sufficient when considered alone. In this paper, we present a knowledge-based system which blends heuristics with spatial reasoning within the framework of a solid modeling system.

Copyright © 1988 by ASME
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